So depends what defines best for you. A lot of what you’ll find in CT is more Italian-American red sauce joints, or stuff reminiscent of what you’d find in Italy in like the 70s. I can’t speak to ALL of CT, just New Haven - but some of the more truly authentic spots here are Skappo, L’Orcio, and Pasta Eataliana (my least favorite of the three though).

Nothing wrong with a red sauce joint, and the ones people have listed are all delicious (I think for me it’s Consiglio’s in that category)